package org.csmzxy.class2334;

public class Example05 {
    public static void main(String[] args){
        String s = "Hello";
        char[] charArray = s.toCharArray();
        System.out.print("将字符串"+s+"转换为字符数组后的结果:");
        for (int i = 0; i < charArray.length; i++) {
            if (i != charArray.length - 1){
                System.out.print(charArray[i] + ",");
            }else {
                System.out.println(charArray[i]);
            }
        }
        System.out.println("将int类型的数据12转换为String类型,结果为"+String.valueOf(12));
        System.out.println("将字符串"+s+"全部转换成大写之后的结果:"+s.toUpperCase());
        System.out.println("将字符串"+s+"全部转换成小写之后的结果:"+s.toLowerCase());
    }
}
